Home / 89,835,084.60-134,563,670.10-74,718,540.60

Finding the Fourth Proportional to 89,835,084.60, 134,563,670.10 and 74,718,540.60

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Solution

The fourth proportional to 89,835,084.60, 134,563,670.10 and 74,718,540.60 is: 111,920,649.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,835,084.60 : 134,563,670.10 = 74,718,540.60 : x
  2. Step 2: Convert to fraction form
    89,835,084.60/134,563,670.10 = 74,718,540.60/x
  3. Step 3: Cross multiply
    89,835,084.60x = 134,563,670.10 × 74,718,540.60
  4. Step 4: Simplify right side
    89,835,084.60x = 10,054,401,047,651,854
  5. Step 5: Solve for x
    x = 10,054,401,047,651,854/89,835,084.60
  6. Step 6: Final answer
    x = 111,920,649.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.